Using 100% innovative resilient filament only, Gold Sable has been developed for watercolor, acrylic, oil and gouache. It has been a best seller for over 30 years. Gold coloured filament in a seamless metal ferrule offer quality to perform like traditional red sable hair. Each filament has craters on the surface which gives the brush excellent colour-loading capability. Each filament is tapered with a chemical process just like the shape of natural animal hair. Excellent durability and retains its shape.